English
envelogram
From envelope + -gram.
Today it means
noun A mathematically-constructed graph of the envelope of a phonocardiogram signal
Language periods are conventional ranges, not dates for this word.
Etymograph / envelogram
English
From envelope + -gram.
noun A mathematically-constructed graph of the envelope of a phonocardiogram signal
Language periods are conventional ranges, not dates for this word.
Etymograph / envelogram